​Dawn grew up behind a wall, terrified of the vampires outside who controlled the lives of humans and demanded their blood. But when she became a delegate for her city and met Victor, she realized that not all vampires were the same, that maybe one could be trusted.

Now Day Walker Sin is infecting his followers with a disease that turns them into mindless killers. Dawn and Victor will have to convince humans and vampires to band together to stop him, because alone they will all die.